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2 Sheets-#Sheet 11.

W. & E. MUMBRAUER.

(No Model.)

BILLIARD TABLE.

Patented May 26, 1896.

fill 55 Ir Inl/61260719.'

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jf/fh/W UNITED STATES- PATENT'OFFICE.

WILHELM MUMBRAUER'AND nnuUNn MUMBRAUEEOF Nnwronicn. Y.

BILLI'ARD-TABLE.

srncirrcnriou forming part of Letters Patent No. 560,739, dated May 26, 189e.

Application iiled March 3, 1896.`

To all whom if; may concern,.-

Be it known that we, WILHELM MUM` BRAUER, a citizen of theUnited States, and EDMUND MUMBRAUER, a citizen of Germany, residents of New York city, New York, have invented an Improved Billiard Table, of which the following is a specification.

This invention relates to a billiard-table of novel construction and on which a ynovel and interesting game can be played.`

The invention consists principally in pivoting to the table within reach of the playball ahorizontally-revoluble arm, which upon being struck and rotatedV will cause a pointer to lbe moved over a dial.

The invention also consists in the other features of improvement fully pointed out in the claims.

In the accompanying drawings, Figure l is a perspective view of our improved billiardtable. Fig. 2 is a vertical longitudinal section thereof; Fig. 3, a rear view of the dial, showing the electric mechanism for operating the pointer; Fig. 4, a vertical section through part of the table, showing the contact mechanism actuated by the pivoted arm b; Fig. 5, a horizontal section on line 5 5, Fig. 4; Fig. 6, a horizontal section on line 6 6, Fig. 4; and Fig. '7, a diagram illustrating the arrangement of the circuit-wires.

The letter c represents a billiard-table of suitable size and configuration. To the bedplate of the, table ct there is pivoted a revoluble arm l?, which is placed a short distance above the cloth and within reach of the playball. This arm is so connected to a pointer c, moving over a dial c', which is affixed to the V head of the table, that the rotation of the arm `will cause the pointer to move over the dial.

The connection between pivoted arm and pointer is preferably effected by means of an electric circuit, but may of course be diiferl ently constructed.

In the example illustrated in the drawings the mechanism is as follows: The spindle b of arm b passes through the bed of the table et and is surrounded by an insulatingring d, afliXed to the lower side of the table. This ring has two (more or less) metallic contacts d d', Fig. 5, and is engaged by the metallic spring e, connected by arm e' to a squared metal socket e2, which receives the squared lower i Serial ll'c` 581,672. (No model.)

the same. The socket e2 is stepped in a metallic bearing or socket f, which is secured to the table a and surrounds the contact mechanism described. The contacts d are so connected by the battery-wires to an electromagnet c placed back of pointer c and adapted to operate the same, that when the parts d' care in contact the circuit is closed and the pointer will advance one space upon the dial. If, therefore, two contacts CZ are provided upon the insulating-ring d, each revolution of the arm b will advance the pointer two numbers, the entire advance of the pointer being dependent upon the impetus given to the arm. 1f the circuit is closed, the current travels as follows: from battery B, by wire h3, to elecrtromagnet g, thence by wire h and branches h to contacts d', thence through spring e, arm e', socket e2, socket f to'wire h2, thence to a circuit-closer t', secured to the front of the table and which serves to interrupt the circuit and prevent the arm h from rotating the pointer c, if desired. From the circuit-closer vl the current travels over wire h5 back to the battery B. If the spring e is not in contact with d', but with one of the insulating sections of ring d, the' circuit is broken and the armature g', of the electromagnet g, will not be attracted nor the pointer advanced. If, therefore, the circuit is closed at t' and the arm b is revolved by impact from the play-ball, the circuit will be alternately opened and. closed to vibrate the armature in the well-known manner and advance the pointer c.

The movement of the armature may be transmitted to the pointer in any suitable manner. We have shown the following construction, Fig. 3: To the armature is pivoted the spindle c2 of the pointer c. Upon this spindle is also mounted a second ratchet-wheel g4, engaged by'a detent g5, connected to the armature g by a link g. This detent prevents the pointer from advancing for more than one space at each motion of the electromagnet. A second detent gl, engaging the wheel g3, prevents back motion of such wheel.

In addition to the arm b, we have shown the table cb to be provided with a number of objectballs j suspended from a rail j', which is stretched across the rear end of the table.

end of the spindle bl, so as to revolve with Y a pawl g2, engaging a ratchet-wheel g3, fast on IOO The arm h as Well as one of these balls must be hit to make a count. The playeball is received Within a rear gutter 7c, and is thence returned to the hands of the player by an inclined gutter 7c', Which is arranged beneath the lower side of the table.

Of course the game may be played in a va.- rety of Ways, the essence of the invention being found in the rotating arm that is adapted to be struck by the play-ball and operates the pointer, Which gives rise to a number of interesting and difficult combinations.

Vhat We claim isi l. The combination of a billiard-table with a revoluble arm having a spindle that projects through the table, a dial connected to the table, a pointer adapted to move over the dial, and means for connecting the depending end of the arm-spindle to the pointer in such a manner that a revolution of the arm Will cause a partial revolution of the pointer, substantially as specified.

2. The combination of a billiard-table with a revoluble arm having a spindle that projects through the table, an insulating-ring having a metal contact and embracing the depending section of the spindle, a revoluble contactspring operated by the spindle, a dial connected to the table, a pointer adapted to move over the dial, a battery, and circuit-Wires that connect the battery With the insulating-ring, contact-spring and pointer, substantially as specified.

3. The combination of a billiard-table With a revoluble arm havingaspindle that projects through the table, an insulating-ring having a metal contact and embracing the depending section of the spindle, a revoluble contactspring operated by the spindle, a dial connected to the table, a pointer, a battery, circuit-Wires, and a circuit-closer in circuit at the front of the table, which is adapted to interrupt the electric connection between revolving arm and pointer, substantially as specified.

WILHELM M UMBRAUER. EDMUND MUMBRAUER. Titnessesz F. v. BRIESEN, W. G. NVHITING. 

